Stratton Lock and Dam
Key Takeaway
Stratton Lock and Dam is classified as significant hazard in Illinois. It was completed in 1939 and is 87 years old. Its primary use is flood risk reduction. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 7 ft (taller than 0.5% in IL) |
| Dam Length | 275 ft |
| Dam Type | Gravity |
| Max Storage | 113.0K acre-ft |
| Normal Storage | 37.0K acre-ft |
| Surface Area | 8,700 acres |
| Drainage Area | 1,243 sq mi |
| Max Discharge | 12,759 cfs |
| Year Completed | 1939 (87 years old) |
| Year Modified | 1999 |
| NID ID | IL00288 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
ILLINOIS DEPARTMENT OF NATURAL RESOURCES
State Government
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Low Hazard 8 ftFrequently Asked Questions
What is the hazard classification of Stratton Lock and Dam?
Stratton Lock and Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Stratton Lock and Dam?
Stratton Lock and Dam is owned by ILLINOIS DEPARTMENT OF NATURAL RESOURCES (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Stratton Lock and Dam built?
Stratton Lock and Dam was completed in 1939, making it 87 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Stratton Lock and Dam?
Stratton Lock and Dam serves the following purposes: Flood Risk Reduction, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Stratton Lock and Dam?
Stratton Lock and Dam has a dam height of 7 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Stratton Lock and Dam last inspected?
Stratton Lock and Dam was last inspected on June 2, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.